src/com/owncloud/android/ui/fragment/FileDetailFragment.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18 package com.owncloud.android.ui.fragment;
  19
  20 import java.io.File;
  21 import java.lang.ref.WeakReference;
  22 import java.util.ArrayList;
  23 import java.util.List;
  24
  25 import android.accounts.Account;
  26 import android.app.Activity;
  27 import android.content.BroadcastReceiver;
  28 import android.content.Context;
  29 import android.content.Intent;
  30 import android.content.IntentFilter;
  31 import android.os.Bundle;
  32 import android.os.Handler;
  33 import android.view.LayoutInflater;
  34 import android.view.View;
  35 import android.view.View.OnClickListener;
  36 import android.view.ViewGroup;
  37 import android.widget.CheckBox;
  38 import android.widget.ImageView;
  39 import android.widget.ProgressBar;
  40 import android.widget.TextView;
  41 import android.widget.Toast;
  42
  43 import com.actionbarsherlock.view.Menu;
  44 import com.actionbarsherlock.view.MenuInflater;
  45 import com.actionbarsherlock.view.MenuItem;
  46 import com.owncloud.android.R;
  47 import com.owncloud.android.datamodel.FileDataStorageManager;
  48 import com.owncloud.android.datamodel.OCFile;
  49 import com.owncloud.android.files.services.FileObserverService;
  50 import com.owncloud.android.files.services.FileUploader;
  51 import com.owncloud.android.files.services.FileDownloader.FileDownloaderBinder;
  52 import com.owncloud.android.files.services.FileUploader.FileUploaderBinder;
  53 import com.owncloud.android.lib.network.OnDatatransferProgressListener;
  54 import com.owncloud.android.lib.operations.common.OnRemoteOperationListener;
  55 import com.owncloud.android.lib.operations.common.RemoteOperation;
  56 import com.owncloud.android.lib.operations.common.RemoteOperationResult;
  57 import com.owncloud.android.lib.operations.common.RemoteOperationResult.ResultCode;
  58 import com.owncloud.android.operations.RemoveFileOperation;
  59 import com.owncloud.android.operations.RenameFileOperation;
  60 import com.owncloud.android.operations.SynchronizeFileOperation;
  61 import com.owncloud.android.ui.activity.ConflictsResolveActivity;
  62 import com.owncloud.android.ui.activity.FileActivity;
  63 import com.owncloud.android.ui.activity.FileDisplayActivity;
  64 import com.owncloud.android.ui.dialog.EditNameDialog;
  65 import com.owncloud.android.ui.dialog.EditNameDialog.EditNameDialogListener;
  66 import com.owncloud.android.ui.preview.PreviewImageFragment;
  67 import com.owncloud.android.utils.DisplayUtils;
  68 import com.owncloud.android.utils.Log_OC;
  69
  70
  71 /**
  72  * This Fragment is used to display the details about a file.
  73  *
  74  * @author Bartek Przybylski
  75  * @author David A. Velasco
  76  */
  77 public class FileDetailFragment extends FileFragment implements
  78         OnClickListener,
  79         ConfirmationDialogFragment.ConfirmationDialogFragmentListener, OnRemoteOperationListener, EditNameDialogListener {
  80
  81     private FileFragment.ContainerActivity mContainerActivity;
  82
  83     private int mLayout;
  84     private View mView;
  85     private Account mAccount;
  86     private FileDataStorageManager mStorageManager;
  87
  88     private UploadFinishReceiver mUploadFinishReceiver;
  89     public ProgressListener mProgressListener;
  90
  91     private Handler mHandler;
  92     private RemoteOperation mLastRemoteOperation;
  93
  94     private static final String TAG = FileDetailFragment.class.getSimpleName();
  95     public static final String FTAG_CONFIRMATION = "REMOVE_CONFIRMATION_FRAGMENT";
  96
  97
  98     /**
  99      * Creates an empty details fragment.
 100      *
 101      * It's necessary to keep a public constructor without parameters; the system uses it when tries to reinstantiate a fragment automatically.
 102      */
 103     public FileDetailFragment() {
 104         super();
 105         mAccount = null;
 106         mStorageManager = null;
 107         mLayout = R.layout.file_details_empty;
 108         mProgressListener = null;
 109     }
 110
 111     /**
 112      * Creates a details fragment.
 113      *
 114      * When 'fileToDetail' or 'ocAccount' are null, creates a dummy layout (to use when a file wasn't tapped before).
 115      *
 116      * @param fileToDetail      An {@link OCFile} to show in the fragment
 117      * @param ocAccount         An ownCloud account; needed to start downloads
 118      */
 119     public FileDetailFragment(OCFile fileToDetail, Account ocAccount) {
 120         super(fileToDetail);
 121         mAccount = ocAccount;
 122         mStorageManager = null; // we need a context to init this; the container activity is not available yet at this moment
 123         mLayout = R.layout.file_details_empty;
 124         mProgressListener = null;
 125     }
 126
 127
 128     @Override
 129     public void onCreate(Bundle savedInstanceState) {
 130         super.onCreate(savedInstanceState);
 131         mHandler = new Handler();
 132         setHasOptionsMenu(true);
 133     }
 134
 135
 136     @Override
 137     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 138             Bundle savedInstanceState) {
 139         //super.onCreateView(inflater, container, savedInstanceState);
 140
 141         if (savedInstanceState != null) {
 142             setFile((OCFile)savedInstanceState.getParcelable(FileActivity.EXTRA_FILE));
 143             mAccount = savedInstanceState.getParcelable(FileActivity.EXTRA_ACCOUNT);
 144         }
 145
 146         if(getFile() != null && mAccount != null) {
 147             mLayout = R.layout.file_details_fragment;
 148         }
 149
 150         View view = null;
 151         //view = inflater.inflate(mLayout, container, false);
 152         view = inflater.inflate(mLayout, null);
 153         mView = view;
 154
 155         if (mLayout == R.layout.file_details_fragment) {
 156             mView.findViewById(R.id.fdKeepInSync).setOnClickListener(this);
 157             ProgressBar progressBar = (ProgressBar)mView.findViewById(R.id.fdProgressBar);
 158             mProgressListener = new ProgressListener(progressBar);
 159             mView.findViewById(R.id.fdCancelBtn).setOnClickListener(this);
 160         }
 161
 162         updateFileDetails(false, false);
 163         return view;
 164     }
 165
 166     /**
 167      * {@inheritDoc}
 168      */
 169     @Override
 170     public void onAttach(Activity activity) {
 171         super.onAttach(activity);
 172         try {
 173             mContainerActivity = (ContainerActivity) activity;
 174
 175         } catch (ClassCastException e) {
 176             throw new ClassCastException(activity.toString() + " must implement " + FileDetailFragment.ContainerActivity.class.getSimpleName());
 177         }
 178     }
 179
 180
 181     /**
 182      * {@inheritDoc}
 183      */
 184     @Override
 185     public void onActivityCreated(Bundle savedInstanceState) {
 186         super.onActivityCreated(savedInstanceState);
 187         if (mAccount != null) {
 188             mStorageManager = new FileDataStorageManager(mAccount, getActivity().getApplicationContext().getContentResolver());
 189         }
 190     }
 191
 192
 193     @Override
 194     public void onSaveInstanceState(Bundle outState) {
 195         super.onSaveInstanceState(outState);
 196         outState.putParcelable(FileActivity.EXTRA_FILE, getFile());
 197         outState.putParcelable(FileActivity.EXTRA_ACCOUNT, mAccount);
 198     }
 199
 200     @Override
 201     public void onStart() {
 202         super.onStart();
 203         listenForTransferProgress();
 204     }
 205
 206     @Override
 207     public void onResume() {
 208         super.onResume();
 209         mUploadFinishReceiver = new UploadFinishReceiver();
 210         IntentFilter filter = new IntentFilter(FileUploader.getUploadFinishMessage());
 211         getActivity().registerReceiver(mUploadFinishReceiver, filter);
 212
 213     }
 214
 215
 216     @Override
 217     public void onPause() {
 218         super.onPause();
 219         if (mUploadFinishReceiver != null) {
 220             getActivity().unregisterReceiver(mUploadFinishReceiver);
 221             mUploadFinishReceiver = null;
 222         }
 223     }
 224
 225
 226     @Override
 227     public void onStop() {
 228         super.onStop();
 229         leaveTransferProgress();
 230     }
 231
 232
 233     @Override
 234     public View getView() {
 235         return super.getView() == null ? mView : super.getView();
 236     }
 237
 238
 239     /**
 240      * {@inheritDoc}
 241      */
 242     @Override
 243     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 244         super.onCreateOptionsMenu(menu, inflater);
 245         inflater.inflate(R.menu.file_actions_menu, menu);
 246         MenuItem item = menu.findItem(R.id.action_see_details);
 247         if (item != null) {
 248             item.setVisible(false);
 249             item.setEnabled(false);
 250         }
 251     }
 252
 253
 254     /**
 255      * {@inheritDoc}
 256      */
 257     @Override
 258     public void onPrepareOptionsMenu (Menu menu) {
 259         super.onPrepareOptionsMenu(menu);
 260
 261         List<Integer> toHide = new ArrayList<Integer>();
 262         List<Integer> toShow = new ArrayList<Integer>();
 263         OCFile file = getFile();
 264
 265         FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 266         boolean downloading = downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file);
 267         FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 268         boolean uploading = uploaderBinder != null && uploaderBinder.isUploading(mAccount, getFile());
 269
 270         if (downloading || uploading) {
 271             toHide.add(R.id.action_download_file);
 272             toHide.add(R.id.action_rename_file);
 273             toHide.add(R.id.action_remove_file);
 274             toHide.add(R.id.action_open_file_with);
 275             if (!downloading) {
 276                 toHide.add(R.id.action_cancel_download);
 277                 toShow.add(R.id.action_cancel_upload);
 278             } else {
 279                 toHide.add(R.id.action_cancel_upload);
 280                 toShow.add(R.id.action_cancel_download);
 281             }
 282
 283         } else if (file != null && file.isDown()) {
 284             toHide.add(R.id.action_download_file);
 285             toHide.add(R.id.action_cancel_download);
 286             toHide.add(R.id.action_cancel_upload);
 287
 288             toShow.add(R.id.action_rename_file);
 289             toShow.add(R.id.action_remove_file);
 290             toShow.add(R.id.action_open_file_with);
 291             toShow.add(R.id.action_sync_file);
 292
 293         } else if (file != null) {
 294             toHide.add(R.id.action_open_file_with);
 295             toHide.add(R.id.action_cancel_download);
 296             toHide.add(R.id.action_cancel_upload);
 297             toHide.add(R.id.action_sync_file);
 298
 299             toShow.add(R.id.action_rename_file);
 300             toShow.add(R.id.action_remove_file);
 301             toShow.add(R.id.action_download_file);
 302
 303         } else {
 304             toHide.add(R.id.action_open_file_with);
 305             toHide.add(R.id.action_cancel_download);
 306             toHide.add(R.id.action_cancel_upload);
 307             toHide.add(R.id.action_sync_file);
 308             toHide.add(R.id.action_download_file);
 309             toHide.add(R.id.action_rename_file);
 310             toHide.add(R.id.action_remove_file);
 311
 312         }
 313         // Options shareLink
 314         if (!file.isShareByLink()) {
 315             toHide.add(R.id.action_unshare_file);
 316         }
 317
 318         MenuItem item = null;
 319         for (int i : toHide) {
 320             item = menu.findItem(i);
 321             if (item != null) {
 322                 item.setVisible(false);
 323                 item.setEnabled(false);
 324             }
 325         }
 326         for (int i : toShow) {
 327             item = menu.findItem(i);
 328             if (item != null) {
 329                 item.setVisible(true);
 330                 item.setEnabled(true);
 331             }
 332         }
 333     }
 334
 335
 336     /**
 337      * {@inheritDoc}
 338      */
 339     @Override
 340     public boolean onOptionsItemSelected(MenuItem item) {
 341         switch (item.getItemId()) {
 342             case R.id.action_open_file_with: {
 343                 mContainerActivity.openFile(getFile());
 344                 return true;
 345             }
 346             case R.id.action_remove_file: {
 347                 removeFile();
 348                 return true;
 349             }
 350             case R.id.action_rename_file: {
 351                 renameFile();
 352                 return true;
 353             }
 354             case R.id.action_download_file:
 355             case R.id.action_cancel_download:
 356             case R.id.action_cancel_upload:
 357             case R.id.action_sync_file: {
 358                 synchronizeFile();
 359                 return true;
 360             }
 361             default:
 362                 return false;
 363         }
 364     }
 365
 366     @Override
 367     public void onClick(View v) {
 368         switch (v.getId()) {
 369             case R.id.fdKeepInSync: {
 370                 toggleKeepInSync();
 371                 break;
 372             }
 373             case R.id.fdCancelBtn: {
 374                 synchronizeFile();
 375                 break;
 376             }
 377             default:
 378                 Log_OC.e(TAG, "Incorrect view clicked!");
 379         }
 380     }
 381
 382
 383     private void toggleKeepInSync() {
 384         CheckBox cb = (CheckBox) getView().findViewById(R.id.fdKeepInSync);
 385         OCFile file = getFile();
 386         file.setKeepInSync(cb.isChecked());
 387         mStorageManager.saveFile(file);
 388
 389         /// register the OCFile instance in the observer service to monitor local updates;
 390         /// if necessary, the file is download
 391         Intent intent = new Intent(getActivity().getApplicationContext(),
 392                                    FileObserverService.class);
 393         intent.putExtra(FileObserverService.KEY_FILE_CMD,
 394                    (cb.isChecked()?
 395                            FileObserverService.CMD_ADD_OBSERVED_FILE:
 396                            FileObserverService.CMD_DEL_OBSERVED_FILE));
 397         intent.putExtra(FileObserverService.KEY_CMD_ARG_FILE, file);
 398         intent.putExtra(FileObserverService.KEY_CMD_ARG_ACCOUNT, mAccount);
 399         getActivity().startService(intent);
 400
 401         if (file.keepInSync()) {
 402             synchronizeFile();   // force an immediate synchronization
 403         }
 404     }
 405
 406
 407     private void removeFile() {
 408         OCFile file = getFile();
 409         ConfirmationDialogFragment confDialog = ConfirmationDialogFragment.newInstance(
 410                 R.string.confirmation_remove_alert,
 411                 new String[]{file.getFileName()},
 412                 file.isDown() ? R.string.confirmation_remove_remote_and_local : R.string.confirmation_remove_remote,
 413                 file.isDown() ? R.string.confirmation_remove_local : -1,
 414                 R.string.common_cancel);
 415         confDialog.setOnConfirmationListener(this);
 416         confDialog.show(getFragmentManager(), FTAG_CONFIRMATION);
 417     }
 418
 419
 420     private void renameFile() {
 421         OCFile file = getFile();
 422         String fileName = file.getFileName();
 423         int extensionStart = file.isFolder() ? -1 : fileName.lastIndexOf(".");
 424         int selectionEnd = (extensionStart >= 0) ? extensionStart : fileName.length();
 425         EditNameDialog dialog = EditNameDialog.newInstance(getString(R.string.rename_dialog_title), fileName, 0, selectionEnd, this);
 426         dialog.show(getFragmentManager(), "nameeditdialog");
 427     }
 428
 429     private void synchronizeFile() {
 430         OCFile file = getFile();
 431         FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 432         FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 433         if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) {
 434             downloaderBinder.cancel(mAccount, file);
 435             if (file.isDown()) {
 436                 setButtonsForDown();
 437             } else {
 438                 setButtonsForRemote();
 439             }
 440
 441         } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file)) {
 442             uploaderBinder.cancel(mAccount, file);
 443             if (!file.fileExists()) {
 444                 // TODO make something better
 445                 ((FileDisplayActivity)getActivity()).cleanSecondFragment();
 446
 447             } else if (file.isDown()) {
 448                 setButtonsForDown();
 449             } else {
 450                 setButtonsForRemote();
 451             }
 452
 453         } else {
 454             mLastRemoteOperation = new SynchronizeFileOperation(file, null, mStorageManager, mAccount, true, getActivity());
 455             mLastRemoteOperation.execute(mAccount, getSherlockActivity(), this, mHandler, getSherlockActivity());
 456
 457             // update ui
 458             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 459
 460         }
 461     }
 462
 463     @Override
 464     public void onConfirmation(String callerTag) {
 465         OCFile file = getFile();
 466         if (callerTag.equals(FTAG_CONFIRMATION)) {
 467             if (mStorageManager.getFileById(file.getFileId()) != null) {
 468                 mLastRemoteOperation = new RemoveFileOperation( file,
 469                                                                 true,
 470                                                                 mStorageManager);
 471                 mLastRemoteOperation.execute(mAccount, getSherlockActivity(), this, mHandler, getSherlockActivity());
 472
 473                 ((FileDisplayActivity) getActivity()).showLoadingDialog();
 474             }
 475         }
 476     }
 477
 478     @Override
 479     public void onNeutral(String callerTag) {
 480         OCFile file = getFile();
 481         mStorageManager.removeFile(file, false, true);    // TODO perform in background task / new thread
 482         if (file.getStoragePath() != null) {
 483             file.setStoragePath(null);
 484             updateFileDetails(file, mAccount);
 485         }
 486     }
 487
 488     @Override
 489     public void onCancel(String callerTag) {
 490         Log_OC.d(TAG, "REMOVAL CANCELED");
 491     }
 492
 493
 494     /**
 495      * Check if the fragment was created with an empty layout. An empty fragment can't show file details, must be replaced.
 496      *
 497      * @return  True when the fragment was created with the empty layout.
 498      */
 499     public boolean isEmpty() {
 500         return (mLayout == R.layout.file_details_empty || getFile() == null || mAccount == null);
 501     }
 502
 503
 504     /**
 505      * Use this method to signal this Activity that it shall update its view.
 506      *
 507      * @param file : An {@link OCFile}
 508      */
 509     public void updateFileDetails(OCFile file, Account ocAccount) {
 510         setFile(file);
 511         if (ocAccount != null && (
 512                 mStorageManager == null ||
 513                 (mAccount != null && !mAccount.equals(ocAccount))
 514            )) {
 515             mStorageManager = new FileDataStorageManager(ocAccount, getActivity().getApplicationContext().getContentResolver());
 516         }
 517         mAccount = ocAccount;
 518         updateFileDetails(false, false);
 519     }
 520
 521     /**
 522      * Updates the view with all relevant details about that file.
 523      *
 524      * TODO Remove parameter when the transferring state of files is kept in database.
 525      *
 526      * TODO REFACTORING! this method called 5 times before every time the fragment is shown!
 527      *
 528      * @param transferring      Flag signaling if the file should be considered as downloading or uploading,
 529      *                          although {@link FileDownloaderBinder#isDownloading(Account, OCFile)}  and
 530      *                          {@link FileUploaderBinder#isUploading(Account, OCFile)} return false.
 531      *
 532      * @param refresh           If 'true', try to refresh the hold file from the database
 533      */
 534     public void updateFileDetails(boolean transferring, boolean refresh) {
 535
 536         if (readyToShow()) {
 537
 538             if (refresh && mStorageManager != null) {
 539                 setFile(mStorageManager.getFileByPath(getFile().getRemotePath()));
 540             }
 541             OCFile file = getFile();
 542
 543             // set file details
 544             setFilename(file.getFileName());
 545             setFiletype(file.getMimetype());
 546             setFilesize(file.getFileLength());
 547             if(ocVersionSupportsTimeCreated()){
 548                 setTimeCreated(file.getCreationTimestamp());
 549             }
 550
 551             setTimeModified(file.getModificationTimestamp());
 552
 553             CheckBox cb = (CheckBox)getView().findViewById(R.id.fdKeepInSync);
 554             cb.setChecked(file.keepInSync());
 555
 556             // configure UI for depending upon local state of the file
 557             //if (FileDownloader.isDownloading(mAccount, mFile.getRemotePath()) || FileUploader.isUploading(mAccount, mFile.getRemotePath())) {
 558             FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 559             FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 560             if (transferring || (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, file)) || (uploaderBinder != null && uploaderBinder.isUploading(mAccount, file))) {
 561                 setButtonsForTransferring();
 562
 563             } else if (file.isDown()) {
 564
 565                 setButtonsForDown();
 566
 567             } else {
 568                 // TODO load default preview image; when the local file is removed, the preview remains there
 569                 setButtonsForRemote();
 570             }
 571         }
 572         getView().invalidate();
 573     }
 574
 575     /**
 576      * Checks if the fragment is ready to show details of a OCFile
 577      *
 578      * @return  'True' when the fragment is ready to show details of a file
 579      */
 580     private boolean readyToShow() {
 581         return (getFile() != null && mAccount != null && mLayout == R.layout.file_details_fragment);
 582     }
 583
 584
 585     /**
 586      * Updates the filename in view
 587      * @param filename to set
 588      */
 589     private void setFilename(String filename) {
 590         TextView tv = (TextView) getView().findViewById(R.id.fdFilename);
 591         if (tv != null)
 592             tv.setText(filename);
 593     }
 594
 595     /**
 596      * Updates the MIME type in view
 597      * @param mimetype to set
 598      */
 599     private void setFiletype(String mimetype) {
 600         TextView tv = (TextView) getView().findViewById(R.id.fdType);
 601         if (tv != null) {
 602             String printableMimetype = DisplayUtils.convertMIMEtoPrettyPrint(mimetype);;
 603             tv.setText(printableMimetype);
 604         }
 605         ImageView iv = (ImageView) getView().findViewById(R.id.fdIcon);
 606         if (iv != null) {
 607             iv.setImageResource(DisplayUtils.getResourceId(mimetype));
 608         }
 609     }
 610
 611     /**
 612      * Updates the file size in view
 613      * @param filesize in bytes to set
 614      */
 615     private void setFilesize(long filesize) {
 616         TextView tv = (TextView) getView().findViewById(R.id.fdSize);
 617         if (tv != null)
 618             tv.setText(DisplayUtils.bytesToHumanReadable(filesize));
 619     }
 620
 621     /**
 622      * Updates the time that the file was created in view
 623      * @param milliseconds Unix time to set
 624      */
 625     private void setTimeCreated(long milliseconds){
 626         TextView tv = (TextView) getView().findViewById(R.id.fdCreated);
 627         TextView tvLabel = (TextView) getView().findViewById(R.id.fdCreatedLabel);
 628         if(tv != null){
 629             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 630             tv.setVisibility(View.VISIBLE);
 631             tvLabel.setVisibility(View.VISIBLE);
 632         }
 633     }
 634
 635     /**
 636      * Updates the time that the file was last modified
 637      * @param milliseconds Unix time to set
 638      */
 639     private void setTimeModified(long milliseconds){
 640         TextView tv = (TextView) getView().findViewById(R.id.fdModified);
 641         if(tv != null){
 642             tv.setText(DisplayUtils.unixTimeToHumanReadable(milliseconds));
 643         }
 644     }
 645
 646     /**
 647      * Enables or disables buttons for a file being downloaded
 648      */
 649     private void setButtonsForTransferring() {
 650         if (!isEmpty()) {
 651             // let's protect the user from himself ;)
 652             getView().findViewById(R.id.fdKeepInSync).setEnabled(false);
 653
 654             // show the progress bar for the transfer
 655             getView().findViewById(R.id.fdProgressBlock).setVisibility(View.VISIBLE);
 656             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 657             progressText.setVisibility(View.VISIBLE);
 658             FileDownloaderBinder downloaderBinder = mContainerActivity.getFileDownloaderBinder();
 659             FileUploaderBinder uploaderBinder = mContainerActivity.getFileUploaderBinder();
 660             if (downloaderBinder != null && downloaderBinder.isDownloading(mAccount, getFile())) {
 661                 progressText.setText(R.string.downloader_download_in_progress_ticker);
 662             } else if (uploaderBinder != null && uploaderBinder.isUploading(mAccount, getFile())) {
 663                 progressText.setText(R.string.uploader_upload_in_progress_ticker);
 664             }
 665         }
 666     }
 667
 668     /**
 669      * Enables or disables buttons for a file locally available
 670      */
 671     private void setButtonsForDown() {
 672         if (!isEmpty()) {
 673             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 674
 675             // hides the progress bar
 676             getView().findViewById(R.id.fdProgressBlock).setVisibility(View.GONE);
 677             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 678             progressText.setVisibility(View.GONE);
 679         }
 680     }
 681
 682     /**
 683      * Enables or disables buttons for a file not locally available
 684      */
 685     private void setButtonsForRemote() {
 686         if (!isEmpty()) {
 687             getView().findViewById(R.id.fdKeepInSync).setEnabled(true);
 688
 689             // hides the progress bar
 690             getView().findViewById(R.id.fdProgressBlock).setVisibility(View.GONE);
 691             TextView progressText = (TextView)getView().findViewById(R.id.fdProgressText);
 692             progressText.setVisibility(View.GONE);
 693         }
 694     }
 695
 696
 697     /**
 698      * In ownCloud 3.X.X and 4.X.X there is a bug that SabreDAV does not return
 699      * the time that the file was created. There is a chance that this will
 700      * be fixed in future versions. Use this method to check if this version of
 701      * ownCloud has this fix.
 702      * @return True, if ownCloud the ownCloud version is supporting creation time
 703      */
 704     private boolean ocVersionSupportsTimeCreated(){
 705         /*if(mAccount != null){
 706             AccountManager accManager = (AccountManager) getActivity().getSystemService(Context.ACCOUNT_SERVICE);
 707             OwnCloudVersion ocVersion = new OwnCloudVersion(accManager
 708                     .getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION));
 709             if(ocVersion.compareTo(new OwnCloudVersion(0x030000)) < 0) {
 710                 return true;
 711             }
 712         }*/
 713         return false;
 714     }
 715
 716
 717     /**
 718      * Once the file upload has finished -> update view
 719      *
 720      * Being notified about the finish of an upload is necessary for the next sequence:
 721      *   1. Upload a big file.
 722      *   2. Force a synchronization; if it finished before the upload, the file in transfer will be included in the local database and in the file list
 723      *      of its containing folder; the the server includes it in the PROPFIND requests although it's not fully upload.
 724      *   3. Click the file in the list to see its details.
 725      *   4. Wait for the upload finishes; at this moment, the details view must be refreshed to enable the action buttons.
 726      */
 727     private class UploadFinishReceiver extends BroadcastReceiver {
 728         @Override
 729         public void onReceive(Context context, Intent intent) {
 730             String accountName = intent.getStringExtra(FileUploader.ACCOUNT_NAME);
 731
 732             if (!isEmpty() && accountName.equals(mAccount.name)) {
 733                 boolean uploadWasFine = intent.getBooleanExtra(FileUploader.EXTRA_UPLOAD_RESULT, false);
 734                 String uploadRemotePath = intent.getStringExtra(FileUploader.EXTRA_REMOTE_PATH);
 735                 boolean renamedInUpload = getFile().getRemotePath().equals(intent.getStringExtra(FileUploader.EXTRA_OLD_REMOTE_PATH));
 736                 if (getFile().getRemotePath().equals(uploadRemotePath) ||
 737                     renamedInUpload) {
 738                     if (uploadWasFine) {
 739                         setFile(mStorageManager.getFileByPath(uploadRemotePath));
 740                     }
 741                     if (renamedInUpload) {
 742                         String newName = (new File(uploadRemotePath)).getName();
 743                         Toast msg = Toast.makeText(getActivity().getApplicationContext(), String.format(getString(R.string.filedetails_renamed_in_upload_msg), newName), Toast.LENGTH_LONG);
 744                         msg.show();
 745                     }
 746                     getSherlockActivity().removeStickyBroadcast(intent);    // not the best place to do this; a small refactorization of BroadcastReceivers should be done
 747
 748                     updateFileDetails(false, false);    // it updates the buttons; must be called although !uploadWasFine; interrupted uploads still leave an incomplete file in the server
 749
 750                     // Force the preview if the file is an image
 751                     if (uploadWasFine && PreviewImageFragment.canBePreviewed(getFile())) {
 752                         ((FileDisplayActivity) mContainerActivity).startImagePreview(getFile());
 753                     }
 754                 }
 755             }
 756         }
 757     }
 758
 759
 760     public void onDismiss(EditNameDialog dialog) {
 761         if (dialog.getResult()) {
 762             String newFilename = dialog.getNewFilename();
 763             Log_OC.d(TAG, "name edit dialog dismissed with new name " + newFilename);
 764             mLastRemoteOperation = new RenameFileOperation( getFile(),
 765                                                             mAccount,
 766                                                             newFilename,
 767                                                             new FileDataStorageManager(mAccount, getActivity().getContentResolver()));
 768             mLastRemoteOperation.execute(mAccount, getSherlockActivity(), this, mHandler, getSherlockActivity());
 769             ((FileDisplayActivity) getActivity()).showLoadingDialog();
 770         }
 771     }
 772
 773
 774     /**
 775      * {@inheritDoc}
 776      */
 777     @Override
 778     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 779         if (operation.equals(mLastRemoteOperation)) {
 780             if (operation instanceof RemoveFileOperation) {
 781                 onRemoveFileOperationFinish((RemoveFileOperation)operation, result);
 782
 783             } else if (operation instanceof RenameFileOperation) {
 784                 onRenameFileOperationFinish((RenameFileOperation)operation, result);
 785
 786             } else if (operation instanceof SynchronizeFileOperation) {
 787                 onSynchronizeFileOperationFinish((SynchronizeFileOperation)operation, result);
 788             }
 789         }
 790     }
 791
 792
 793     private void onRemoveFileOperationFinish(RemoveFileOperation operation, RemoteOperationResult result) {
 794         ((FileDisplayActivity) getActivity()).dismissLoadingDialog();
 795         if (result.isSuccess()) {
 796             Toast msg = Toast.makeText(getActivity().getApplicationContext(), R.string.remove_success_msg, Toast.LENGTH_LONG);
 797             msg.show();
 798             ((FileDisplayActivity)getActivity()).cleanSecondFragment();
 799
 800         } else {
 801             Toast msg = Toast.makeText(getActivity(), R.string.remove_fail_msg, Toast.LENGTH_LONG);
 802             msg.show();
 803             if (result.isSslRecoverableException()) {
 804                 // TODO show the SSL warning dialog
 805             }
 806         }
 807     }
 808
 809     private void onRenameFileOperationFinish(RenameFileOperation operation, RemoteOperationResult result) {
 810         ((FileDisplayActivity) getActivity()).dismissLoadingDialog();
 811
 812         if (result.isSuccess()) {
 813             updateFileDetails(((RenameFileOperation)operation).getFile(), mAccount);
 814             mContainerActivity.onFileStateChanged();
 815
 816         } else {
 817             if (result.getCode().equals(ResultCode.INVALID_LOCAL_FILE_NAME)) {
 818                 Toast msg = Toast.makeText(getActivity(), R.string.rename_local_fail_msg, Toast.LENGTH_LONG);
 819                 msg.show();
 820                 // TODO throw again the new rename dialog
 821             } if (result.getCode().equals(ResultCode.INVALID_CHARACTER_IN_NAME)) {
 822                 Toast msg = Toast.makeText(getActivity(), R.string.filename_forbidden_characters, Toast.LENGTH_LONG);
 823                 msg.show();
 824             } else {
 825                 Toast msg = Toast.makeText(getActivity(), R.string.rename_server_fail_msg, Toast.LENGTH_LONG);
 826                 msg.show();
 827                 if (result.isSslRecoverableException()) {
 828                     // TODO show the SSL warning dialog
 829                 }
 830             }
 831         }
 832     }
 833
 834     private void onSynchronizeFileOperationFinish(SynchronizeFileOperation operation, RemoteOperationResult result) {
 835         ((FileDisplayActivity) getActivity()).dismissLoadingDialog();
 836         OCFile file = getFile();
 837         if (!result.isSuccess()) {
 838             if (result.getCode() == ResultCode.SYNC_CONFLICT) {
 839                 Intent i = new Intent(getActivity(), ConflictsResolveActivity.class);
 840                 i.putExtra(ConflictsResolveActivity.EXTRA_FILE, file);
 841                 i.putExtra(ConflictsResolveActivity.EXTRA_ACCOUNT, mAccount);
 842                 startActivity(i);
 843
 844             }
 845
 846             if (file.isDown()) {
 847                 setButtonsForDown();
 848
 849             } else {
 850                 setButtonsForRemote();
 851             }
 852
 853         } else {
 854             if (operation.transferWasRequested()) {
 855                 setButtonsForTransferring();
 856                 mContainerActivity.onFileStateChanged();    // this is not working; FileDownloader won't do NOTHING at all until this method finishes, so
 857                                                             // checking the service to see if the file is downloading results in FALSE
 858             } else {
 859                 Toast msg = Toast.makeText(getActivity(), R.string.sync_file_nothing_to_do_msg, Toast.LENGTH_LONG);
 860                 msg.show();
 861                 if (file.isDown()) {
 862                     setButtonsForDown();
 863
 864                 } else {
 865                     setButtonsForRemote();
 866                 }
 867             }
 868         }
 869     }
 870
 871
 872     public void listenForTransferProgress() {
 873         if (mProgressListener != null) {
 874             if (mContainerActivity.getFileDownloaderBinder() != null) {
 875                 mContainerActivity.getFileDownloaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, getFile());
 876             }
 877             if (mContainerActivity.getFileUploaderBinder() != null) {
 878                 mContainerActivity.getFileUploaderBinder().addDatatransferProgressListener(mProgressListener, mAccount, getFile());
 879             }
 880         }
 881     }
 882
 883
 884     public void leaveTransferProgress() {
 885         if (mProgressListener != null) {
 886             if (mContainerActivity.getFileDownloaderBinder() != null) {
 887                 mContainerActivity.getFileDownloaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, getFile());
 888             }
 889             if (mContainerActivity.getFileUploaderBinder() != null) {
 890                 mContainerActivity.getFileUploaderBinder().removeDatatransferProgressListener(mProgressListener, mAccount, getFile());
 891             }
 892         }
 893     }
 894
 895
 896
 897     /**
 898      * Helper class responsible for updating the progress bar shown for file uploading or downloading
 899      *
 900      * @author David A. Velasco
 901      */
 902     private class ProgressListener implements OnDatatransferProgressListener {
 903         int mLastPercent = 0;
 904         WeakReference<ProgressBar> mProgressBar = null;
 905
 906         ProgressListener(ProgressBar progressBar) {
 907             mProgressBar = new WeakReference<ProgressBar>(progressBar);
 908         }
 909
 910         @Override
 911         public void onTransferProgress(long progressRate, long totalTransferredSoFar, long totalToTransfer, String filename) {
 912             int percent = (int)(100.0*((double)totalTransferredSoFar)/((double)totalToTransfer));
 913             if (percent != mLastPercent) {
 914                 ProgressBar pb = mProgressBar.get();
 915                 if (pb != null) {
 916                     pb.setProgress(percent);
 917                     pb.postInvalidate();
 918                 }
 919             }
 920             mLastPercent = percent;
 921         }
 922
 923     };
 924
 925 }